CODEWITHSUNDEEP
javascriptarraysfilterlodash
Dante Cervantes
Dante Cervantes

Reputation: 313

How to filter array by array of dynamic objects?

i have a huge collection of data 700+ items in, and i want to filter by dynamic array of objects, lets say that user has typed ode and my script should search on every filter without i do something like filter.code == store.code

const hugeData = [{name:"store 1",code : "code 1", available : false},{name : "store 2",code : "simple_code",available : true},{name : "sto 3",code : "has no cde",available : true}...]

const filters = [{ code : "ode", name : "re" }]

the result that im expecting is 

// output
[{name : "store 1", code : "code 1", available : false},{name : "store 2",code : "simple_code",available : true}]

i resolved this doing the following with lodash, but function is very slow, and code is poor, is there any other way that i can do this works?

const results = []
_.map(hugeData, store => {
    _.map(filters, tag => {
        Object.keys(tag).map(tagOb => {
          if (store[tagOb] && store[tagOb].includes(tag[tagOb])) {
             results.push(store);
          }
        });
    });
});

Upvotes: 1

Views: 489

Answers (2)

Anthony
Anthony

Reputation: 6482

This might be faster - storing the Object.keys() result, and filtering out any keys that aren't on the first store (assuming all stores are equivalent). I also used a single object for filters.

const hugeData = [
  { name: "store 1", code: "code 1", available: false },
  { name: "store 2", code: "simple_code", available: true },
  { name: "sto 3", code: "has no cde", available: true }
];

const filters = { code: "ode", name: "re" };
const keys = Object.keys(filters).filter(k => hugeData[0].hasOwnProperty(k));

console.log(
  hugeData.filter(s => keys.some(k => s[k].includes(filters[k])))
);

If you wanted ALL filters, to match, you could change it to every:

hugeData.filter(s => keys.every(k => s[k].includes(filters[k])))

Upvotes: 0

Code Maniac
Code Maniac

Reputation: 37755

You can use filter and some

const hugeData = [{ name: "store 1", code: "code 1",available: false}, { name: "store 2", code: "simple_code",available: true}, { name: "sto 3", code: "has no cde", available: true }]

const filters = { code: "ode", name: "re" }

let final = hugeData.filter(value => {
  return Object.entries(value).some(([key, value]) => {
    return typeof value == 'string' && value.includes(filters[key])
  })
})

console.log(final)

Upvotes: 3

Related Questions